For advocates of walkable, unpolluted and vehicle-free cities, the past few weeks have offered an unprecedented opportunity to test the ideas they have long lobbied for.
With Covid-19 lockdowns vastly reducing the use of roads and public transit systems, city authorities -- from Liverpool to Lima -- are taking advantage by closing streets to cars, opening others to bicycles and widening sidewalks to help residents maintain the six-foot distancing recommended by global health authorities.
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